以專案為基礎的兒童 Python 編碼（級別 3）

 Students learn to utilize Tkinter to produce more professional and advanced UIs for future projects. Students will begin making a text editor with Tkinter. Students will learn about file IO in Python.

Notes
Use the tkinter library to create GUI applications with widgets
Create a basic text editor program
Read and write text files in python 

 Make the game of Tic-Tac-Toe in Tkinter

Notes
  Create tk buttons and assign button commands
Store and access data from a two dimensional grid represented as nested python lists
Use functions and flow controls to handle a turn based-game
Apply lambda functions
Understand how to use the destroy() function of tkinter
Check win states using compound conditional statements 

 Students learn about cryptography and use Tkinter to make a simple cipher solver app

Notes
Encrypt and decrypt messages with simple alphabetic ciphers
○    Understand the modulo operator
○    Design a Python class to save the state of widgets in a tkinter application
○    Save data about a Python object as a .json file
○    Read data from a .json file into a Python object to load the saved state of an application 

 Students learn to write a python script that organizes all files in a directory into labeled folders, and use recursion to further organize files within folders and subfolders.

Skills learned:
○	Make directories and move files using the os module
○	Use the os module to check if items are files or directories
○	Sort files based on their file type extension
○	Apply recursion to solve problems
○	Understand the termination condition of a recursive program